| 波浪发电装置浮筒的水动力特性及参数研究 |
| |
| 引用本文： | 程阳,李英,陈柏全.波浪发电装置浮筒的水动力特性及参数研究[J].海洋技术,2015,34(1):82-88. |
| |
| 作者姓名： | 程阳 李英 陈柏全 |
| |
| 作者单位： | 天津大学 建筑工程学院水利工程仿真与安全国家重点实验室,天津,300072 |
| |
| 基金项目： | 国家973重大专项资助项目，教育部回国基金资助项目 |
| |
| 摘 要： | 针对我国波浪发电的发展现状,介绍了“海蛇”波浪发电装置的发电原理,并应用OrcaFlex 软件建立了装置的水动力数值模型,研究了“海蛇”装置浮筒的水动力特性.根据“海蛇”装置的结构特点,通过对活塞运动的时程曲线进行傅里叶变换,给出此装置一级转化总势能计算的简易方法.另外,通过改变浮筒的直径和长度,以装置的效率/体积比作为衡量系统经济性的指标,研究浮筒几何参数对装置一级能量转化效率的影响.结果表明,装置一级能量转化效率随浮筒长度和直径增加而变大,进一步分析表明,适当增加浮筒长度比增大直径更具经济效益.装置的效率/体积比随着浮筒直径增加存在先增加后减少的拐点,这可以为“海蛇”的初始设计提供一定的理论依据.
|
| 关 键 词： | 波浪发电 海蛇 浮筒 能量转化效率 水动力特性 |
Study on the Hydrodynamic Characteristics and Parameters of Wave Energy Converters |
| |
| CHENG Yang,LI Ying,CHEN Bai-quan.Study on the Hydrodynamic Characteristics and Parameters of Wave Energy Converters[J].Ocean Technology,2015,34(1):82-88. |
| |
| Authors: | CHENG Yang LI Ying CHEN Bai-quan |
| |
| Abstract: | In view of the current development of wave energy converters in China, the electricity generation principle of the Pelamis system is introduced in this paper, and the hydrodynamic model of the device is built with the OrcaFlex software, so as to study the dynamic response of the buoy. According to the characteristics of the device structure, a simple calculation method of the total potential energy is proposed by conducting Fourier transform for the time history of piston. In addition, through changing the length and diameter of the buoy, the effects of the buoy geometrical parameters on the preliminary energy converting efficiency are analyzed, with the efficiency/size ratio as the index of economical efficiency. The results show that the converting efficiency rises as the length and diameter of the buoy increase. Further analysis shows that properly increasing the length of the buoy is more cost-effective than enlarging its diameter, and the converting efficiency per unit volume of the buoy can provide the theoretic basis for the preliminary design of the Pelamis wave power device. |
| |
| Keywords: | wave power Pelamis buoy energy converting efficiency hydrodynamic characteristics |
| 本文献已被 万方数据 等数据库收录！ |
| 点击此处可从《海洋技术》浏览原始摘要信息 |
| 点击此处可从《海洋技术》下载免费的PDF全文 |
|
